Here, we present Megavirus chilensis, a giant virus isolated off the coast of Chile, but capable of replicating in fresh water acanthamoeba, meaning you.
It was official last month: http://www.pnas.org/content/early/2011/10/04/1110889108.abstract

Living things are currently split into three branches or domains – eukaryotes, or complex celled organisms such as animals, plants and humans – and two simple celled microorganism divisions – bacteria and archaea. But now a researcher working with the laboratory of the maverick scientist Dr Craig Venter claims he might have discovered a fourth.

The object was spotted by the pilot of Olympic Airways flight 266 from Athens, and the sighting was corroborated by staff at Athens Airport and a nearby Greek air force base. Pilots of two other passenger jets also reported seeing the body.

Pilots have apparently fired upon the unidentified objects without success since the 1980s, according to Nick Pope, who used to run the Ministry of Defence’s UFO project. "There was a faction in the MoD who said ’We want to shoot down a UFO and that will resolve the issue one way or another’," he told The Sun.

Bankers and accountants who used to put their faith in spreadsheets and complex formulas are now turning to clairvoyants for guidance. Many have even started taking in job offers and contracts to be analysed. The British Astrological and Psychic Society (BAPS) said it had witnessed a dramatic increase in the demand for readings in the last year – particularly in the last three months.

According to the uncorroborated story that accompanies the picture on dozens of cryptozoology websites and blogs, the photographer spotted the fast-moving "being" but was only able to take a single photo before it flew away.

This woman knows nothing about finance yet claims she can predict turmoil in the markets months before it happens. Don’t believe her? Many blue-chip companies do – and pay handsomely for her ’intuition’.

Here we present a selection of the most striking, perplexing and entertaining drawings and eyewitness testimonies submitted by member of the public. If you have the faintest clue what they might mean, or have your own UFO story, then share your thoughts in the comment box at the bottom.

If the whole performance has been just a rehearsed confidence trick, it was extremely inept. Counter-intuitively, I suspect it is not a confidence trick, but something rather more interesting: an example of the groping for other-worldly experiences that is such an enduring feature of the modern world. The more science tells us it knows all the answers, the more we protest, in our millions, that there are other answers, ones that science cannot fully explain.

The hunt for the elusive creature - said to be 10ft tall, part man, part ape and otherwise known as the Abominable Snowman - has frustrated scientists for decades. Now tests at Oxford Brookes University on hairs said to be from a Yeti in India have failed to link the strands with any known species.